Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Snapper SPA521-SERIES 3 mower

Snapper SPA521-SERIES 3 mower Parts

Here are the diagrams and repair parts for Snapper SPA521-SERIES 3 mower, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for SPA521-SERIES 3 Walk-Behind Mowers

  • Capscrew for Snapper SPA521-SERIES 3 - Part 703570

    Snapper Hex Head Cap Screw

    Part #7091527

    Replaced by #703570

    Info Icon
    Manufacturer substitution
    This part replaces 7091527. Substitute parts can look different from the original.
    In Stock
    $8.74
    Minus Item
    Qty
    Plus Item
  • Bw .656x1.87 for Snapper SPA521-SERIES 3 - Part 7016440SM

    Cutter housing diagram

    Snapper Belleville Washer

    Part #7016440

    Replaced by #7016440SM

    Info Icon
    Manufacturer substitution
    This part replaces 7016440. Substitute parts can look different from the original.
    In Stock
    $15.37
    Minus Item
    Qty
    Plus Item
  • Tire for Snapper SPA521-SERIES 3 - Part 7073584YP

    Traction, rear wheel diagram

    Snapper Tire

    Part #7073526

    Replaced by #7073584YP

    Info Icon
    Manufacturer substitution
    This part replaces 7073526. Substitute parts can look different from the original.
    In Stock
    $205.02
    Minus Item
    Qty
    Plus Item
  • Bolt, for Snapper SPA521-SERIES 3 - Part 703466

    Loop handle/control series 3 diagram

    Snapper Hwst, 1/4c X

    Part #7091686

    Replaced by #703466

    Info Icon
    Manufacturer substitution
    This part replaces 7091686. Substitute parts can look different from the original.
    In Stock
    $30.44
    Minus Item
    Qty
    Plus Item
  • Weld,lft Wsh for Snapper SPA521-SERIES 3 - Part 7046214YP

    Snapper Weld

    Part #7046214

    Replaced by #7046214YP

    Info Icon
    Manufacturer substitution
    This part replaces 7046214. Substitute parts can look different from the original.
    In Stock
    $67.44
    Minus Item
    Qty
    Plus Item
  • Nut for Snapper SPA521-SERIES 3 - Part 703412

    Fuel tank diagram

    Snapper Hln 10

    Part #7091290

    Replaced by #703412

    Info Icon
    Manufacturer substitution
    This part replaces 7091290. Substitute parts can look different from the original.
    In Stock
    $8.06
    Minus Item
    Qty
    Plus Item
  • Bolt 3/8-16 for Snapper SPA521-SERIES 3 - Part 5025013X8SM

    Snapper Hex Head Cap Screw

    Part #7091304

    Replaced by #5025013X8SM

    Info Icon
    Manufacturer substitution
    This part replaces 7091304. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.11
    Minus Item
    Qty
    Plus Item
  • Wheel, for Snapper SPA521-SERIES 3 - Part 1700184SM

    48"/52"/61" mower deck (deck) diagram

    Snapper Gauge Wheel

    Part #7029264

    Replaced by #1700184SM

    Info Icon
    Manufacturer substitution
    This part replaces 7029264. Substitute parts can look different from the original.
    In Stock
    $28.43
    Minus Item
    Qty
    Plus Item
  • (c)switch, for Snapper SPA521-SERIES 3 - Part 7029715YP

    Snapper Switch

    Part #7029715

    Replaced by #7029715YP

    Info Icon
    Manufacturer substitution
    This part replaces 7029715. Substitute parts can look different from the original.
    In Stock
    $125.02
    Minus Item
    Qty
    Plus Item
  • Roller,deck for Snapper SPA521-SERIES 3 - Part 7073142YP

    48"/52"/61" mower deck (deck) diagram

    Snapper Roller Deck

    Part #7079226

    Replaced by #7073142YP

    Info Icon
    Manufacturer substitution
    This part replaces 7079226. Substitute parts can look different from the original.
    In Stock
    $50.02
    Minus Item
    Qty
    Plus Item

Most common symptoms to help you fix your walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower front deck tray

How to replace a lawn mower front deck tray

Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…

Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair time and Difficulty

 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

Parts & More

Bottom-Mount Refrigerator
Central Air Conditioner
Coffee Maker
Dishwasher
Dryer
Front-Engine Lawn Tractor
Gas Range
Gas Walk-Behind Mower
Household Fan
Parts
Refrigerator
Side-By-Side Refrigerator
Tool Chest
Washer